Håvard Arnestad

• Viggen, Erlend Magnus & Arnestad, Håvard Kjellmo (2021). Understanding sound radiation from surface vibrations moving at subsonic speeds. I Viggen, Erlend Magnus (Red.), Proceedings of the 44th Scandinavian Symposium on Physical Acoustics. Norsk Fysisk Selskap. ISSN 978-82-8123-021-7.
• Arnestad, Håvard Kjellmo & Viggen, Erlend Magnus (2021). A fast semi-analytical method for propagating leaky Lamb wavefields. I Viggen, Erlend Magnus (Red.), Proceedings of the 44th Scandinavian Symposium on Physical Acoustics. Norsk Fysisk Selskap. ISSN 978-82-8123-021-7.

Se alle arbeider i Cristin

• Viggen, Erlend Magnus & Arnestad, Håvard Kjellmo (2021). Understanding sound radiation from surface vibrations moving at subsonic speeds.
• Arnestad, Håvard Kjellmo & Viggen, Erlend Magnus (2021). A fast semi-analytical method for propagating leaky Lamb wavefields. Vis sammendrag

  A fast method is presented for calculating the wavefields from initialized leaky Lamb waves on plates immersed in sufficiently light fluids. The method works by precomputing the dispersion relation and attenuation, and propagating the wavefields in the frequency domain. An angular spectrum approach is used to include leakage into surrounding fluid. Compared to matching FEM simulations, the computations are performed in the order of seconds, rather than hours. The method also benefits from being much easier to set up correctly, but is on the other hand less general in that it cannot handle e.g. scattering from defects. The correspondence is shown to be good for the case of interest.

Se alle arbeider i Cristin